They are someone who uses the internet so they can appear tough, they are often seen getting in pointless Nerd Wars, they tend to threaten somebody with physical violence, saying things like "I'll kick your ass!" When in reality, they are the kid in your class that sits at their desk quietly and reads Naruto comics.

The sad thing is, this is the only life for some people, they can't pull it off in reality, so they think they can get some "Internet Respect" by cussing at people on Myspace, Youtube comments, or a forum, they think by doing this, people think of them as a Badass.

A nerd who plays online games and acts tough. If you piss him off he will probably say he could take you in real life and ask for your address incase he wins the lottery in which case he'll have to make room for alot of ass beatings.

Ted: WOW DUDE I PWNZORD YOU LET ME GET YOR ADDRESS SO I CAN PWN YOU IN RL!
Bill: shut the fuck up nerd boy

The Urban Dictionary T-Shirt

A person that takes a problem that they have with a person or group of people onto the internet(facebook). This problem they may have with the person or group of people could have begun in person or they could just start the problem on the internet. An "Internet Badass" will say very little if anything at all in person to the person or group of people that they have the problem with. They dont feel comfortable saying anything unless its on the internet(facebook). "Internet Badass" also covers people that deal with there problems with a person or group of people through texts and phone calls. Most of society would refer to these people as "Bitches" and that they certainly are.